diff options
| author |   Florin Coras <fcoras@cisco.com> | 2023-02-16 18:59:38 -0800 |
|---|---|---|
| committer |   Dave Wallace <dwallacelf@gmail.com> | 2023-03-06 23:02:19 +0000 |
| commit | 3ffc77da2b750a43c1a254612a5856277f749e68 (patch) | |
| tree | d412c458700e3100d3f19b36ea58be473d1498b5 | |
| parent | a41a0b5a4c8430a6141fc847d43484ab1c4b2a0a (diff) | |
tcp: allow syns in closed state
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If223096cf912c1748ae417b40585a9bea5d9d9a9
| -rw-r--r-- | src/vnet/tcp/tcp_input.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c index 9e2ff190d64..32de187eef2 100644 --- a/src/vnet/tcp/tcp_input.c +++ b/src/vnet/tcp/tcp_input.c @@ -2628,7 +2628,8 @@ tcp46_listen_inline (vlib_main_t *vm, vlib_node_runtime_t *node, { lc = tcp_listener_get (vnet_buffer (b[0])->tcp.connection_index); } - else /* We are in TimeWait state*/ + /* Probably we are in time-wait or closed state */ + else { tcp_connection_t *tc; tc = tcp_connection_get (vnet_buffer (b[0])->tcp.connection_index, @@ -3350,7 +3351,7 @@ do { \ _(CLOSED, TCP_FLAG_RST | TCP_FLAG_ACK, TCP_INPUT_NEXT_DROP, TCP_ERROR_CONNECTION_CLOSED); _(CLOSED, TCP_FLAG_ACK, TCP_INPUT_NEXT_RESET, TCP_ERROR_CONNECTION_CLOSED); - _(CLOSED, TCP_FLAG_SYN, TCP_INPUT_NEXT_RESET, TCP_ERROR_CONNECTION_CLOSED); + _ (CLOSED, TCP_FLAG_SYN, TCP_INPUT_NEXT_LISTEN, TCP_ERROR_NONE); _(CLOSED, TCP_FLAG_FIN | TCP_FLAG_ACK, TCP_INPUT_NEXT_RESET, TCP_ERROR_CONNECTION_CLOSED); #undef _ |